科研成果
  成果统计  
  获奖
  论文
  专著
  专利
  新品种
  软件著作权
  成果转化  
  成果
  案例
  动态
  · 最新动态
  · 人才招聘
  · 专题
  ·
  · 学会学报
  · 信息服务
  您现在的位置:首页 > 科研成果 > 论文
 
论文编号:
作者:
作者: Fan Yang , Dandan Zhang, Junjun Wu , Qiong Chen , Chunyan Long , Yongheng Li, Xiaoli Cheng *
作者所在部门:
作者所在部门:
通讯作者:
通讯作者: Xiaoli Cheng
刊物名称:
刊物名称: Science of the Total Environment
论文题目:
论文题目: Anti-seasonal submergence dominates the structure and composition of prokaryotic communities in the riparian zone of the Three Gorges Reservoir, China.
摘要:
摘要:

Since the completion of Three Gorges Dam in 2008, a large water-level fluctuation zone with anti-seasonal submergence has formed between the elevations of 145 m and 175 m in the Three Gorges Reservoir in China. In addition to hydrological regime, revegetation has also occurred in this water-level fluctuation zone. However, how the hydrological regime and revegetation regulate soil prokaryotic community remains unclear. Here, we investigated soil prokaryotic community structure, diversity and environmental parameters in different flooding zones from two soil layers (0–10 cm and 10–30 cm) at 6 locations along the water-level fluctuation zone from upstream to downstream. The soil prokaryotic diversity tended to decrease from upstream to downstream, and the alpha diversity was higher in the topsoil than in the deep soil at all sites. Flooding significantly enhanced the prokaryotic diversity compared to the control (i.e., permanent dry zone). The soil prokaryotic composition underwent deterministic processes in the upstream sites and stochastic processes in the downstream sites, with stronger stochastic processes in the topsoil than in the deep soil across all sites and elevations. As expected, the soil pH, moisture, NH4 +-N, organic carbon and nitrogen were proven to be determinants of the prokaryotic community composition. Changes in plant traits (plant biomass, richness, and carbon content) after revegetation induced by submergence also played an important role in structuring the prokaryotic community. The prokaryotic
community exhibited a shorter average path distance (GD) in the flooding zones compared to the control, with the shortest average degree (avgK) and the lowest levels of stability in the longer periodic inundation

年: 2019
卷: 663
期:
页: 662-672
收录类别:
影响因子:
论文出处:
论文出处:
外单位作者单位:
外单位作者单位:
备注:

关闭窗口